Automatic force-feed lubricating attachment



1929- I J. J. SAUNDERS 7 1,723,811

AUTOMATIC FORCE FEED LUBRICA'I'ING uncanny Filed Sept. 26, 1927 2 $heets$heet 1 INVENTOR.

2 Sheets-Shed. 2

' I N VEN TOR.

ATTORNEY.

Aug. 6, 1929. J. J. SAUNDERS AUTOMATIC FORCE FEED LUBRICAT'ING ATTACHMENT Filed Sept. 26, 1921 John amps,

2 u? 2 mu \Q n lllkL 1|:

, is R 4l forl the reception of a tubular nipple.

The piston 39 is operated by steam from the chest 6. The operation of the attachment, for the purpose of feeding the lubricant, is timed by the valve 8, and corresponds with the stroke of the piston 2 in the cylinder 1. It will be assumed that steam is supplied to the chamber 22, through the line 13 and will force piston 39 towards the nipple 34 and which forces steam from the cylinder 22 through the line 14 to the chest 6. The exhaust from the chamber 22 is connected to the exhaust of the engine by the position of valve 7 As piston 38 is connected to piston 39 by'a pin 40, piston 38 will be carried in the same direction as piston 39 and the oil within the chamber 21 is forced out through the line 16 and into the chest 6 and where it is carried with steam through port 3 into the piston chamber 5. When the pistons 38 and 39 are moving in the direction as stated, the check valve 31 is closed whereby that end of the cylinder 21 which communicates with the chest 6 through the medium of the line 15 is closed to the-chest. When piston 38 is at the end of its stroke, it clears port 24 and oil enters into chamber 21 due to partial vacuum therein. When the pistons 38 and 39 move in the opposite direction, lubricant will enter chamber 21 through port 25 as the latter will be open.

The nipples 33, 34 in connection with the sockets 41, actas cushioning means for the stroke of the piston 39 whereby it is preventedfrom climbing against the ends ofthe chamber 22. The pockets or sockets 41 inthe piston 39 fit over the nipples 33, 34 and trap the exhauststeam between piston face and end of cylinder thereby setting up a cushioning action for piston 39.

When the pistons 38 and 39 move in a directiontowards the lines 14 and 16 lubricant is supplied to the steam chest and from there it passes through the port 3 into the piston chamber 5 and when the pistons 38, 39 are moved towards the lines 13, 15 lubricant is supplied into the steam chest and from there it. passes through the port 4 into the chamber 5. The lubricant when passing into the engme cylinder mixes with the steam, as it is conducted through the same ports or passages through which passes the steam to the chamber 5.

The action of the attachment is automatic and provides for a thorough lubrication of the piston 2, as well as the valve 8, and therefore it is thought the many advantages of a lubricating attachment, in accordance with this invention, can be readily understood, and

piston 44 for the piston 43. The pistons 43 and 44 are connected together by a pin 45 which extends through a slot 47 formed in a partition 46 provided in a housing 48 which is constructed in a manner to provide cylindrical piston chambers 49, 50 for the pistons 43, 44 respectively. The piston 43 is of less diameter than the piston 44. Otherwise than that as stated, the form shown in Figure 3 is the same as that illustrated in Figures 1 and 2.

\Vhat I claim is:

1. A lubricating attachment tor steam eugines comprising a lubricant reservoir ha ving a pair of outlet ports, adjustable means for controlling discharge through said ports,

a pair of superposed piston chambers, said reservoir arranged over said chambers and said ports discharging lubricant into the upper one of said chambers at two points thereof, a piston operating in each of said chambers and connected together for moving in unison, the upper one oi said pistons constituting a lubricant expelling means and acting to successively open and close said ports and to close said ports simultaneously, a pair of oppositely extending lubricant feed lines leading from the ends of that chamber receiving lubricant and adapted to open into the steam chest of an engine cylinder, oppositely disposed controlling valves for said lines, and a pair of oppositely extending steam lines extended from the ends of the lower one of said chambers and adapted to open into said steam chest and conducting steam for operating the lower one of said pistons in opposite directions thereby providing for the alternate teed ot' lubricant from the ends of that chamber receiving the lubricant to said steam chest.

2. A lubricating attachment for steam en gines comprising a lubricant reservoir having a pair of outlet ports, adjustable means for controlling discharge through said ports, a pair of superposed piston chambers, said reservoir arranged over said chambers and said ports discharging lubricant into the upper one of said chambers at two points thereof, a piston operating in each 01 said chamhers and connected together for moving in unison, the upper one of said pistons constituting a lubricant expelling means and acting to successively open and close said ports and to close said ports sin'niltaneously, a pair of oppositely extending lubricant teed lines leading from the ends of that chan'lber receiving lubricant and adapted to open into the steam chest of an engine cylinder, oppositely disposed controll ng valves for said. lines, a pair of oppositely extending steam lin-s extended from the ends of the lower one of said chambers and adapted to open into said steam chest and conducting steam for operating the lower one of said pistons in opposite directions thereby providing for the alternate feed of lubricant from the ends of that chamber receiving the lubricant to said steam chest, and means to provide a cushion for that piston driven by steam supplied frem the steam chest.

3. A lubricating attachment for steam engines comprising a lubricant reservoir having a pair of outlet ports, adjustable means for controlling discharge through said ports, a pair of superposed piston chambers, said reservoir arranged over said chambers and said ports discharging lubricant into the up per one of said chambers at two points thereof, a piston operating in each of said chant bers and connected together for nnwing in unison, the upper one of said pistons constituting a lubricant expelling means and act ing to successively open and close said ports and to close said ports simultaneously, a pair of oppositely extending lubricant teed lines leading from the ends of that chamber receiving lubricant and adapted to open into the steam chest of an engine cylinder, oppositely disposed controlling valves for said lines, and a pair of oppositely extending steam lines extended from the ends of the lower one of said chambers and adapted to open into said steam chest and conducting steam for operating the lower one oi said pistons in opposite directions thereby providing for the alternate feed of hihricant from the ends of that chamber receiving the lubricant to said steam chest, said lubricant feed lines opening into sai d steam chest at spaced points and said steam conducting lines opening into the steam chest at spaced points and having the lubricant l'eed lines arranged therebetvveen.

4. A lubricating attachment for steam engines comprising a lubricant reservoir having a pair of outlet ports, adjustable means for controlling discharge through said ports, a pair of superposed piston chambers, said reservoir arranged over said chambers and said ports discharging lubricant into the upper one of said chambers at two points thereof, a piston operating in each of said chambers and connected together for moving in unison, the upper one of said pistons constituting a lubricant expelling means and acting to successively open and close said .to open into the steam chest oil an en ports and to close said ports simul aneously, apair of oppositely extending lubricant teed lines leading from the ends of that chamber neceiving lubrirant and adapted cylinder, oppositely disposed control. valves for said lines, a pair oi? oppositely extending steam lines ntended from the ends oi. the lower one ct said chambers and adapted to open into said steam chest and conducting s eam tor operating the lower one of said pistons i opposite direetica thereby providing for the alternate teed oi: lubricant from the ends ot shat chamber receiving the lubricant to said steam chest, and means to provide a cushion tor that piston driven by steam supplied from the steam chest, said lubri' ant feed lines open ing into the steam choc at spaced pomts and. said steam lines opening into the steam chest at spaced points and having the lulnicnnt lines arranged therebetween.

A lubricant attachment for steam engine cylinders comprising a lubricant receiver, a pair of lubricant feed lines leading thcre'trom to the steam chest of an engine cylinder, a piston operating in said receiver for alternately expelling luln'icant therefrom. into said lines, controlling valves tor said. lines, a piston chamber, said receiver arranged over said chamber, a slotted wall .t'orniiijig means providing the bottom oi the receiver and the top of said chamber, combined steam supply and discharge lines leading from said chamber to the steam chest of the engine, a piston operating in said chamber and driven from steam supplied thereto, and a coupling connection extending through the slot oi? said wall forming means for connecting the pistons together" whereby they will operate in unison when the steam actuated piston is driven.

6. A lubricant attachment for steam engine cylinders comprising a lubricant receiver, a pair of lubricant teed lines leading therefrom to the steam chest of an engine cylinder, a piston operating in said receiver for alternately expelling lubricant therefrom into said lines, controlling valves tor said lines, a piston chamber, said receiver arranged over said chamber, a slotted wall forming means providing the bottom of the receiver and the top of said chamber, combined steamsupply and discharge lines leading from said chamber to the steam chest of the engine, a piston operating in said chamber and driven from steam supplied thereto, a coupling connection extending through the slot of said wall forming means for connecting the pistons together whereby they will operate in unison when the steam actuated piston is driven, a lubricant reservoir arranged over said receiver and having its bottom constituting the top of the re ceiver, said bottom provided with means for supplying lubricant to said receiver, and adjustable valves for controlling the means for supplying lubricant to the receiver.

7. A lubricant attachment for steam engine cylinders comprising a housing provided with a pair of superposed, spaced partitions to form, a lubricant reservoir, an

7 upper piston chamber and alower piston chamber, the upper of said partitions provided with ports for supplying lubricant from said reservoir to the upper piston chamber, means adjustably engaging with the housing for controlling the supply of lubricant through said ports, a. pair of lubricant feed lines leading from the upper piston chamber to the steam chest of an engine, controlling valves for said lines, a piston operating in said upper chamber for alternately expelling lubricant therefrom into said lines, combined steam supply and discharge lines leading from the lower chamber to the steam chest of the engine, a piston operating in said lower chamber and driven from the steam supplied thereto, and a coupling connection extending through the lower of said partitions for connecting the two pistons together to provide for the operation thereof in unison on the actuation of the piston in the lower chamber.

8. A lubricant attachment for steam engine' cylinders comprising a housing provided with a pair of superposed, spaced partitions -to form a lubricant reservoir, an upper piston chamber and a lower piston chamber, the upper of said partitions provided with ports for supplying lubricant from said reservoir to the upper piston chamber, means adjustably engaging with the housing for controlling the supply of lubricant through said ports, a pair of lubricant feed lines leading from the upper piston chamber to the steam chest of an engine, controlling valves for said lines, a piston. operating in said upper chamber for alternately expelling lubicant therefrom into said lines, combined steam supply and discharge lines leading from the lower chamber to the steam chest of the engine, a piston operating in said lower chamber and driven rom the steam supplied thereto, a coupling connection extending through the lower of said partitions for connecting the two pistons together to provide for the operation thereof in unison on the actuation of the piston in the lower chamber, and the piston in the lower chamber and the ends of the latter having eo-acting means to provide cushions for said lower piston.

In testimony whereof, I aflix my signature hereto.

JOHN JAMES SAUNDERS. 

